| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server; |
| |
| import static com.android.dx.mockito.inline.extended.ExtendedMockito.anyBoolean; |
| import static com.android.dx.mockito.inline.extended.ExtendedMockito.anyInt; |
| import static com.android.dx.mockito.inline.extended.ExtendedMockito.anyLong; |
| import static com.android.dx.mockito.inline.extended.ExtendedMockito.anyString; |
| import static com.android.dx.mockito.inline.extended.ExtendedMockito.doAnswer; |
| import static com.android.dx.mockito.inline.extended.ExtendedMockito.doReturn; |
| import static com.android.dx.mockito.inline.extended.ExtendedMockito.verify; |
| import static com.android.dx.mockito.inline.extended.ExtendedMockito.when; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| import static org.mockito.ArgumentMatchers.eq; |
| import static org.mockito.ArgumentMatchers.isNull; |
| |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.os.RecoverySystem; |
| import android.os.SystemProperties; |
| import android.os.UserHandle; |
| import android.provider.DeviceConfig; |
| import android.provider.Settings; |
| |
| import com.android.dx.mockito.inline.extended.ExtendedMockito; |
| import com.android.server.am.SettingsToPropertiesMapper; |
| import com.android.server.utils.FlagNamespaceUtils; |
| |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.mockito.Answers; |
| import org.mockito.Mock; |
| import org.mockito.MockitoSession; |
| import org.mockito.quality.Strictness; |
| import org.mockito.stubbing.Answer; |
| |
| import java.util.HashMap; |
| |
| /** |
| * Test RescueParty. |
| */ |
| public class RescuePartyTest { |
| private static final int PERSISTENT_APP_UID = 12; |
| private static final long CURRENT_NETWORK_TIME_MILLIS = 0L; |
| private static final String FAKE_NATIVE_NAMESPACE1 = "native1"; |
| private static final String FAKE_NATIVE_NAMESPACE2 = "native2"; |
| private static final String[] FAKE_RESET_NATIVE_NAMESPACES = |
| {FAKE_NATIVE_NAMESPACE1, FAKE_NATIVE_NAMESPACE2}; |
| |
| private MockitoSession mSession; |
| |
| @Mock(answer = Answers.RETURNS_DEEP_STUBS) |
| private Context mMockContext; |
| |
| @Mock(answer = Answers.RETURNS_DEEP_STUBS) |
| private ContentResolver mMockContentResolver; |
| |
| private HashMap<String, String> mSystemSettingsMap; |
| |
| @Before |
| public void setUp() throws Exception { |
| mSession = |
| ExtendedMockito.mockitoSession().initMocks( |
| this) |
| .strictness(Strictness.LENIENT) |
| .spyStatic(DeviceConfig.class) |
| .spyStatic(SystemProperties.class) |
| .spyStatic(Settings.Global.class) |
| .spyStatic(Settings.Secure.class) |
| .spyStatic(SettingsToPropertiesMapper.class) |
| .spyStatic(RecoverySystem.class) |
| .spyStatic(RescueParty.class) |
| .startMocking(); |
| mSystemSettingsMap = new HashMap<>(); |
| |
| when(mMockContext.getContentResolver()).thenReturn(mMockContentResolver); |
| |
| |
| // Mock SystemProperties setter and various getters |
| doAnswer((Answer<Void>) invocationOnMock -> { |
| String key = invocationOnMock.getArgument(0); |
| String value = invocationOnMock.getArgument(1); |
| |
| mSystemSettingsMap.put(key, value); |
| return null; |
| } |
| ).when(() -> SystemProperties.set(anyString(), anyString())); |
| |
| doAnswer((Answer<Boolean>) invocationOnMock -> { |
| String key = invocationOnMock.getArgument(0); |
| boolean defaultValue = invocationOnMock.getArgument(1); |
| |
| String storedValue = mSystemSettingsMap.get(key); |
| return storedValue == null ? defaultValue : Boolean.parseBoolean(storedValue); |
| } |
| ).when(() -> SystemProperties.getBoolean(anyString(), anyBoolean())); |
| |
| doAnswer((Answer<Integer>) invocationOnMock -> { |
| String key = invocationOnMock.getArgument(0); |
| int defaultValue = invocationOnMock.getArgument(1); |
| |
| String storedValue = mSystemSettingsMap.get(key); |
| return storedValue == null ? defaultValue : Integer.parseInt(storedValue); |
| } |
| ).when(() -> SystemProperties.getInt(anyString(), anyInt())); |
| |
| doAnswer((Answer<Long>) invocationOnMock -> { |
| String key = invocationOnMock.getArgument(0); |
| long defaultValue = invocationOnMock.getArgument(1); |
| |
| String storedValue = mSystemSettingsMap.get(key); |
| return storedValue == null ? defaultValue : Long.parseLong(storedValue); |
| } |
| ).when(() -> SystemProperties.getLong(anyString(), anyLong())); |
| |
| // Mock DeviceConfig |
| doAnswer((Answer<Boolean>) invocationOnMock -> true) |
| .when(() -> DeviceConfig.setProperty(anyString(), anyString(), anyString(), |
| anyBoolean())); |
| doAnswer((Answer<Void>) invocationOnMock -> null) |
| .when(() -> DeviceConfig.resetToDefaults(anyInt(), anyString())); |
| |
| |
| doReturn(CURRENT_NETWORK_TIME_MILLIS).when(() -> RescueParty.getElapsedRealtime()); |
| RescueParty.resetAllThresholds(); |
| FlagNamespaceUtils.resetKnownResetNamespacesFlagCounterForTest(); |
| |
| SystemProperties.set(RescueParty.PROP_RESCUE_LEVEL, |
| Integer.toString(RescueParty.LEVEL_NONE)); |
| SystemProperties.set(RescueParty.PROP_RESCUE_BOOT_COUNT, Integer.toString(0)); |
| SystemProperties.set(RescueParty.PROP_ENABLE_RESCUE, Boolean.toString(true)); |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| mSession.finishMocking(); |
| } |
| |
| @Test |
| public void testBootLoopDetectionWithExecutionForAllRescueLevels() { |
| noteBoot(RescueParty.TRIGGER_COUNT); |
| |
| verifySettingsResets(Settings.RESET_MODE_UNTRUSTED_DEFAULTS); |
| assertEquals(RescueParty.LEVEL_RESET_SETTINGS_UNTRUSTED_DEFAULTS, |
| SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| |
| noteBoot(RescueParty.TRIGGER_COUNT); |
| |
| verifySettingsResets(Settings.RESET_MODE_UNTRUSTED_CHANGES); |
| assertEquals(RescueParty.LEVEL_RESET_SETTINGS_UNTRUSTED_CHANGES, |
| SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| |
| noteBoot(RescueParty.TRIGGER_COUNT); |
| |
| verifySettingsResets(Settings.RESET_MODE_TRUSTED_DEFAULTS); |
| assertEquals(RescueParty.LEVEL_RESET_SETTINGS_TRUSTED_DEFAULTS, |
| SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| |
| noteBoot(RescueParty.TRIGGER_COUNT); |
| |
| verify(() -> RecoverySystem.rebootPromptAndWipeUserData(mMockContext, RescueParty.TAG)); |
| assertEquals(RescueParty.LEVEL_FACTORY_RESET, |
| SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| } |
| |
| @Test |
| public void testPersistentAppCrashDetectionWithExecutionForAllRescueLevels() { |
| notePersistentAppCrash(RescueParty.TRIGGER_COUNT); |
| |
| verifySettingsResets(Settings.RESET_MODE_UNTRUSTED_DEFAULTS); |
| assertEquals(RescueParty.LEVEL_RESET_SETTINGS_UNTRUSTED_DEFAULTS, |
| SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| |
| notePersistentAppCrash(RescueParty.TRIGGER_COUNT); |
| |
| verifySettingsResets(Settings.RESET_MODE_UNTRUSTED_CHANGES); |
| assertEquals(RescueParty.LEVEL_RESET_SETTINGS_UNTRUSTED_CHANGES, |
| SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| |
| notePersistentAppCrash(RescueParty.TRIGGER_COUNT); |
| |
| verifySettingsResets(Settings.RESET_MODE_TRUSTED_DEFAULTS); |
| assertEquals(RescueParty.LEVEL_RESET_SETTINGS_TRUSTED_DEFAULTS, |
| SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| |
| notePersistentAppCrash(RescueParty.TRIGGER_COUNT); |
| |
| verify(() -> RecoverySystem.rebootPromptAndWipeUserData(mMockContext, RescueParty.TAG)); |
| assertEquals(RescueParty.LEVEL_FACTORY_RESET, |
| SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| } |
| |
| @Test |
| public void testBootLoopDetectionWithWrongInterval() { |
| noteBoot(RescueParty.TRIGGER_COUNT - 1); |
| |
| // last boot is just outside of the boot loop detection window |
| doReturn(CURRENT_NETWORK_TIME_MILLIS + RescueParty.BOOT_TRIGGER_WINDOW_MILLIS + 1).when( |
| () -> RescueParty.getElapsedRealtime()); |
| noteBoot(/*numTimes=*/1); |
| |
| assertEquals(RescueParty.LEVEL_NONE, |
| SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| } |
| |
| @Test |
| public void testPersistentAppCrashDetectionWithWrongInterval() { |
| notePersistentAppCrash(RescueParty.TRIGGER_COUNT - 1); |
| |
| // last persistent app crash is just outside of the boot loop detection window |
| doReturn(CURRENT_NETWORK_TIME_MILLIS |
| + RescueParty.PERSISTENT_APP_CRASH_TRIGGER_WINDOW_MILLIS + 1) |
| .when(() -> RescueParty.getElapsedRealtime()); |
| notePersistentAppCrash(/*numTimes=*/1); |
| |
| assertEquals(RescueParty.LEVEL_NONE, |
| SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| } |
| |
| @Test |
| public void testBootLoopDetectionWithProperInterval() { |
| noteBoot(RescueParty.TRIGGER_COUNT - 1); |
| |
| // last boot is just inside of the boot loop detection window |
| doReturn(CURRENT_NETWORK_TIME_MILLIS + RescueParty.BOOT_TRIGGER_WINDOW_MILLIS).when( |
| () -> RescueParty.getElapsedRealtime()); |
| noteBoot(/*numTimes=*/1); |
| |
| verifySettingsResets(Settings.RESET_MODE_UNTRUSTED_DEFAULTS); |
| assertEquals(RescueParty.LEVEL_RESET_SETTINGS_UNTRUSTED_DEFAULTS, |
| SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| } |
| |
| @Test |
| public void testPersistentAppCrashDetectionWithProperInterval() { |
| notePersistentAppCrash(RescueParty.TRIGGER_COUNT - 1); |
| |
| // last persistent app crash is just inside of the boot loop detection window |
| doReturn(CURRENT_NETWORK_TIME_MILLIS |
| + RescueParty.PERSISTENT_APP_CRASH_TRIGGER_WINDOW_MILLIS) |
| .when(() -> RescueParty.getElapsedRealtime()); |
| notePersistentAppCrash(/*numTimes=*/1); |
| |
| verifySettingsResets(Settings.RESET_MODE_UNTRUSTED_DEFAULTS); |
| assertEquals(RescueParty.LEVEL_RESET_SETTINGS_UNTRUSTED_DEFAULTS, |
| SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| } |
| |
| @Test |
| public void testBootLoopDetectionWithWrongTriggerCount() { |
| noteBoot(RescueParty.TRIGGER_COUNT - 1); |
| assertEquals(RescueParty.LEVEL_NONE, |
| SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| } |
| |
| @Test |
| public void testPersistentAppCrashDetectionWithWrongTriggerCount() { |
| notePersistentAppCrash(RescueParty.TRIGGER_COUNT - 1); |
| assertEquals(RescueParty.LEVEL_NONE, |
| SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| } |
| |
| @Test |
| public void testIsAttemptingFactoryReset() { |
| noteBoot(RescueParty.TRIGGER_COUNT * 4); |
| |
| verify(() -> RecoverySystem.rebootPromptAndWipeUserData(mMockContext, RescueParty.TAG)); |
| assertTrue(RescueParty.isAttemptingFactoryReset()); |
| } |
| |
| @Test |
| public void testOnSettingsProviderPublishedExecutesRescueLevels() { |
| SystemProperties.set(RescueParty.PROP_RESCUE_LEVEL, Integer.toString(1)); |
| |
| RescueParty.onSettingsProviderPublished(mMockContext); |
| |
| verifySettingsResets(Settings.RESET_MODE_UNTRUSTED_DEFAULTS); |
| assertEquals(RescueParty.LEVEL_RESET_SETTINGS_UNTRUSTED_DEFAULTS, |
| SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| } |
| |
| @Test |
| public void testNativeRescuePartyResets() { |
| doReturn(true).when(() -> SettingsToPropertiesMapper.isNativeFlagsResetPerformed()); |
| doReturn(FAKE_RESET_NATIVE_NAMESPACES).when( |
| () -> SettingsToPropertiesMapper.getResetNativeCategories()); |
| |
| RescueParty.onSettingsProviderPublished(mMockContext); |
| |
| verify(() -> DeviceConfig.resetToDefaults(Settings.RESET_MODE_TRUSTED_DEFAULTS, |
| FAKE_NATIVE_NAMESPACE1)); |
| verify(() -> DeviceConfig.resetToDefaults(Settings.RESET_MODE_TRUSTED_DEFAULTS, |
| FAKE_NATIVE_NAMESPACE2)); |
| |
| ExtendedMockito.verify( |
| () -> DeviceConfig.setProperty(FlagNamespaceUtils.NAMESPACE_RESCUE_PARTY, |
| FlagNamespaceUtils.RESET_PLATFORM_PACKAGE_FLAG + 0, |
| FAKE_NATIVE_NAMESPACE1, /*makeDefault=*/true)); |
| ExtendedMockito.verify( |
| () -> DeviceConfig.setProperty(FlagNamespaceUtils.NAMESPACE_RESCUE_PARTY, |
| FlagNamespaceUtils.RESET_PLATFORM_PACKAGE_FLAG + 1, |
| FAKE_NATIVE_NAMESPACE2, /*makeDefault=*/true)); |
| } |
| |
| private void verifySettingsResets(int resetMode) { |
| verify(() -> Settings.Global.resetToDefaultsAsUser(mMockContentResolver, null, |
| resetMode, UserHandle.USER_SYSTEM)); |
| verify(() -> Settings.Secure.resetToDefaultsAsUser(eq(mMockContentResolver), isNull(), |
| eq(resetMode), anyInt())); |
| } |
| |
| private void noteBoot(int numTimes) { |
| for (int i = 0; i < numTimes; i++) { |
| RescueParty.noteBoot(mMockContext); |
| } |
| } |
| |
| private void notePersistentAppCrash(int numTimes) { |
| for (int i = 0; i < numTimes; i++) { |
| RescueParty.noteAppCrash(mMockContext, PERSISTENT_APP_UID); |
| } |
| } |
| } |
